Friend Tranny won't downshift after rebuild

Friend Tranny won't downshift after rebuild

08-16-2007, 08:36 PM

#1 (permalink)

Mactruck

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Join Date: Dec 2000 Location: Marlborough, CT U.S.A. Posts: 1,271 Old Reader's Rigs Gallery

Friend Tranny won't downshift after rebuild

Have a friend with a 96 3500 w/a recently rebuilt transmission. (This week)

The shop stated that they are having a problem downshifting the truck. Shifts fine it just won't downshift under a load or gunning it.
They also stated it wasn't receiving a signal to downshift from the injection pump.

Yes I know that the Injection pump is Manually controlled so to me this doesn't make sense.
Could it be a TPS, TSS or a kickdown cable adjustment.

My concern really is that this is a somewhat reputable shop and based on their proposed answer I think they know nothing about CTD's.

On Edit. He had been having a problem with the tranny stalling prior to the rebuild. Stalling at trffic lights and such. To me it sounds like a TPS problem. Comments?

__________________

2001.5 D2500 QC SB SLT 4X4, DTT 89% TC & VB, Camshaft & HRVP44 from Massdiesel, DDII injectors, Garrett BB Turbo Stage II, FASS 150 fuel system, Bully Dog 5" exhaust, 315/70R17 BFG AT's on 102 Eagle Wheels, Reunel rear and Denver Offroad front Bumpers

Last edited by Mactruck; 08-16-2007 at 09:25 PM.. Reason: Additional Info

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